valedictorian

/V AE0 L AH0 D IH0 K T AO1 R IY0 AH0 N/
noun
  1. 1

    (properly) The individual in a graduating class who delivers the farewell or valedictory address, often the person who graduates with the highest grades.

  2. 2

    The individual in a graduating class who graduates with the highest grades.

Synonyms

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Source: https://en.wiktionary.org/wiki/valedictorian